diff --git a/cura/OneAtATimeIterator.py b/cura/OneAtATimeIterator.py
index dc09b5aa09..6ecd49d8b3 100644
--- a/cura/OneAtATimeIterator.py
+++ b/cura/OneAtATimeIterator.py
@@ -94,7 +94,7 @@ class OneAtATimeIterator(Iterator.Iterator):
         if a == b:
             return False
 
-        overlap = a.callDecoration("getConvexHullBoundary").intersectsPolygon(b.callDecoration("getConvexHullHead"))
+        overlap = a.callDecoration("getConvexHullBoundary").intersectsPolygon(b.callDecoration("getConvexHullHeadFull"))
         if overlap:
             return True
         else: